BIG ASS FANS Powerfoil 8 Plus, Installation Manual

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12’–24’ POWERFOIL ® 8, 12’–24’ POWERFOIL ® 8 PLUS
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horizontally moving air. Thin or streamlined
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smoothly around these obstructions, losing little
momentum, and leaving only a small stagnant
area behind the obstruction.
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the air to change direction, turning upward and
outward. There is a stagnant area behind these
obstructions that is wider and higher than the
obstructions themselves.
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to the low pressure area above the fan where
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creates a convection-like air current that gathers
momentum. Once this current is established,
the fan begins to move air outside of the
current, escalating its cooling effects.
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Where there are multiple fans appropriately
spaced, the expanding jets of adjacent fans
meet to create a pressure zone. The pressure
zone acts like a wall, causing each fan to
behave like a single enclosed fan. Typically,
a single fan’s performance will increase when
working in conjunction with other fans.
Pre-Installation (cont.)